xm-turbo intercooler?

[taylorbok]

hello I am starting the build of my xm turbo. I will post some pictures when its done but for now I have a few questions about w/a intercoolers.

1) I am hoping to only run about 7 psi, will I see the benefits of having an intercooler

2) I cant seem to figure out how many cfm intercooler I need. (2871 billet wheel with tial housing) max I can figure is 600cfm but I dont think I would "need" that much, the ones I am looking at that I like the size of are only 400cfm

3) what are you guys running for heat exchangers for the water, best design I have seen is a u cooler under the e-module but I would have to build that, not really a big deal just would have to find the material.


Thanks

 

[Wheel House Motorsports]

slap a 3071 on it, big free flowing charge tube/airbox, run 4-5psi, no intercooler and love it. simple, powerful, less clutter and junk to go wrong. good cold air intake to keep fresh air rocking all day long

simple is king IMO.

 

[taylorbok]

I already have the 2871 coming off my 800R so thats what I am going to use for now. Im not sold on the 3071 yet any how, but thats neither here nor there 2871 is whats going on.

 

[Visi]

3071 is awesome!

 

[taylorbok]

its a 2876, forgot what I had its been so long.

At any rate if I decide later I want to put on a 3071 I can do that but for now going to use what I have.

anyone with good info on w/a inter-coolers?

where did all the turbo doo guru's go? or are they just not in sled mode yet?

 

[islanddoo]

Have you looked at frozenboost.com they have lots of different options on there for w/a intercoolers.

 

[taylorbok]

yes but the ones that are a reasonable size only flow about 400cfm, is that going to be enough?

according to the compressor map of a 2876 running about 7psi on our sleds it is, but its just enough which may end up becoming a restriction if a guy decides to run higher boost

 

[Boyko]

hello I am starting the build of my xm turbo. I will post some pictures when its done but for now I have a few questions about w/a intercoolers.

1) I am hoping to only run about 7 psi, will I see the benefits of having an intercooler

2) I cant seem to figure out how many cfm intercooler I need. (2871 billet wheel with tial housing) max I can figure is 600cfm but I dont think I would "need" that much, the ones I am looking at that I like the size of are only 400cfm

3) what are you guys running for heat exchangers for the water, best design I have seen is a u cooler under the e-module but I would have to build that, not really a big deal just would have to find the material.


Thanks

400 cfm should be good, the manufacture is the one rating the flow so it could be out. Keep away from barrel style intercoolers, you nice want a wide core not something that is narrow and long

Don’t run a bosch pump, there are some smaller pumps that work great

For a heat exchanger you can buy aluminum extrusion from a custom sled shop 200 square inches of surface area should be enough depending were your running it

Seems like a lot of guys run to small of a turbo and try fixing it with a intercooler. Altitude is taxing on a turbo and running 12 psi at 10,000 feet with a 60mm turbo is problematic glad to see ya got a big a$$ turbo, when your cooling the charge your going to want more airflow.

http://www.snowest.com/forum/showthread.php?t=329600

 

[Boyko]

Garretts maps are in lb/min not cfm, 400cfm is a lot and can be enough air for +500hp depending on air density and temperature.

 

[taylorbok]

my math is a little rusty but best I can figure @6000ft elevation 23*f air density is roughly .0655 lb/ft^3 so at say 25lb/min that is 384cfm. the numbers are fast and loose but shouldn't be far off.

at any rate what is wrong with the barrel style inter-coolers?

this is one I was looking at http://www.frozenboost.com/product_info.php?cPath=218&products_id=220&osCsid=bbaa53b29c16eab6abdb18c41e9954d4

this one would also work and has considerably more flow http://www.frozenboost.com/product_info.php?cPath=218&products_id=219&osCsid=bbaa53b29c16eab6abdb18c41e9954d4

there is others on there that would work but those two are certain to fit where I want to put it. If there is a problem with those I would choose another but not sure

does anyone have pictures of there set up?

 

[TWARD700]

Here's a link to my XP setup.
http://www.snowest.com/forum/showthread.php?t=320849

 

[taylorbok]

looks like you have a pretty decent set up there. gives me some ideas

 

[Boyko]

Seems to me your doing a calculation with thin air, I don't think you have to because your air is getting compressed. Ratings for air flow with HP are usually from a standard density.

It is better to have more rows in a intercooler than a few long ones, it is less restricting. Look at OEM stuff, intercoolers are usually more square with larger rows. Look at fords 5.4 intercooler that goes under there supercharger.

It seem to me that frozen boosts ratings should be taken with a grain of salt. I have used both the Frozen Boost type 19 (on a Yamaha) & type 20 (on M1000). The 20 seems restricting and the turbo built boost so slow. The 19 is ok but man it is heavy. FB intercooler are all really heavy, great for a diesel @ 60psi boost

I would try to fit this in http://www.frozenboost.com/product_...d=210&osCsid=bbaa53b29c16eab6abdb18c41e9954d4

 

[turbo800]

Here is another source if you haven't found what your after...
I bought my standard intercooler through these guys:
http://www.cxracing.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=CXR&Category_Code=AWICS

This boost calculator might also help out with your CFM question:
http://www.rbracing-rsr.com/calcboost.html

 

[taylorbok]

Boyko I understand what your saying, what I was essentially figuring was the amount of cfm the turbo has to gather to create my desired boost at that elevation and temperature but once inside the system lb/min becomes a better way to measure flow because a ft3 is heavier because its compressed so converting those cfm numbers to lb/min is prob a better way to figure it.

Ill try and go with a bigger one, either of these should work just fine I figure

http://www.frozenboost.com/product_info.php?cPath=218&products_id=216&osCsid=bbaa53b29c16eab6abdb18c41e9954d4

http://www.frozenboost.com/product_info.php?cPath=218&products_id=213&osCsid=bbaa53b29c16eab6abdb18c41e9954d4

why do they weigh so much and is there any lighter options?

thanks for the help and insightful posts

 

[Boyko]

I think ether of those would work well for ya and would be a good choice. The reason for the weight is there just really over built, maximum boost is 70 psi……..wtf. I have looked and can not find anything else that is priced or sized well. If you can find something please let me know. You could start with a core and build one from scratch to

Air flow numbers confuse me, they don't mean anything unless they also state a draw or push to the air, typically it is a vacuum @ 28” of water column which is close to 1 psi.

This is a cool project, your going to have fun with it

 

[brycter]

We can build any thing you want. We use a 8 x7 x4 core. That core is set up for 18 psi sea level. After 18 you will start to get a lot of velocity loss and bottom end gets sloppy.

 

[taylorbok]

thanks bryce, the problem stands that I would like to use a "barrel style" for convenience and looks but if that is not good I will use one of the other options there.

should be a fun sled when its ready.

 

[adam8781]

The barrel style would be oh so sweet, but the pressure drop is crazy on the barrels. Long flow ones would be my choice.

Bryce any pics of any of your w2a setups?

 

[gus bohne]

Sorry but for tests I have done on the 3 inch and the
2 1/2 barrel from frozen boost you guys are way off.
at 24 psi in to the barrel I have 24 coming out
at 42 psi out of the barrel I have 45 psi IN pressure. yes there is a drop but not what your getting at.

so at all the levels a trail rider would be at there is NO drop on these barrel styles nor have I experienced any type of soggy bottom...lol sing it boys..

build what you like but get real with your pressure drop and flow resistance thoughts. this aint promod and these are not 88 or 94 inducers flowing like typhoons..

Now we need intercoolers again ??? thought the new data loggers proved to somebody that intercoolers were not needed ???\

anyone giving away a barrel cooler I will give it a home where it will get treated with respect and taken out for play time weekly !!!